Home / 699,378.78-1,045,086.76-525,134.60

Finding the Fourth Proportional to 699,378.78, 1,045,086.76 and 525,134.60

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Solution

The fourth proportional to 699,378.78, 1,045,086.76 and 525,134.60 is: 784,712.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,378.78 : 1,045,086.76 = 525,134.60 : x
  2. Step 2: Convert to fraction form
    699,378.78/1,045,086.76 = 525,134.60/x
  3. Step 3: Cross multiply
    699,378.78x = 1,045,086.76 × 525,134.60
  4. Step 4: Simplify right side
    699,378.78x = 548,811,217,677.90
  5. Step 5: Solve for x
    x = 548,811,217,677.90/699,378.78
  6. Step 6: Final answer
    x = 784,712.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.